GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 Avalanche - 4WD 🢒 HVAC 🢒 Heating, Ventilation, and Air Conditioning 🢒 Auxiliary Air Conditioning Evaporator Replacement

Auxiliary Air Conditioning Evaporator Replacement Standart Wheelbase


Object Number: 1848581 Size: MF

Callout

Component Name

Preliminary Procedure

  1. Remove the HVAC module - auxiliary. Refer to Auxiliary HVAC Module Replacement.
  2. Disconnect any wiring connectors or harnesses from HVAC module.

1

HVAC Module Gasket

2

Auxiliary HVAC Module Lower Cover Bolt (Qty: 3)

Caution: Refer to Fastener Caution in the Preface section.

Procedure

Remove any fastener clips that secure cover to module.

Tighten
3 N·m (27 lb in)

3

Auxiliary HVAC Module Lower Cover

4

HVAC Module Case

Procedure

Remove any fastener clips that secure cover to module.

Tighten
3 N·m (27 lb in)

5

Auxiliary HVAC Evaporator Core

Procedure

Ensure all seals and gaskets are in place upon installation.

Auxiliary Air Conditioning Evaporator Replacement Extended Wheelbase


Object Number: 1699957 Size: SF

Callout

Component Name

Preliminary Procedure

  1. Remove the HVAC module - auxiliary. Refer to Auxiliary HVAC Module Replacement.
  2. Remove the thermal expansion valve (TXV) - auxilliary. Refer to Auxiliary Air Conditioning Evaporator Thermal Expansion Valve Replacement.
  3. Disconnect any wiring connectors or harnesses from the HVAC module.

1

Auxiliary HVAC Module Lower Cover Bolt (Qty: 4)

Caution: Refer to Fastener Caution in the Preface section.

Tip
Remove any fastener clips that secure cover to module.

Tighten
9 N·m (80 lb in)

2

Auxiliary HVAC Module Lower Cover

3

Auxiliary HVAC Evaporator

Tip
Ensure all seals and gaskets are in place upon installation.